Before I identify all of you as incredibly self-absorbed, miserable childless individuals, how do you quantify screaming children?
Sometimes our one year old squeals, and while it can be loud, it's brief. We quickly find something to distract and walk him out if it is repetetive. Often he squeals because people at nearby tables are making faces, waving, etc at him, and no I'm not going to get up and tell people to stop waving at my kid because you made him squeal a few times. With our first, the noise bothered me more, and I was quicker to walk him out on the first sound. We got a lot of commiserating "he's fine/ we've been there before" type comments and after getting used to kids being kids I'm more laid back. And even when there aren't crackers or banana pieces on the floor, the tips are higher provided that the server isn't a complete ass.
We live here year-round and if we can't get a sitter, we aren't going to go to Bayou Bill's, Enzo's or God help us McDonalds every night we want to grab a bite out (no offense to BB's or Enzo's, they are some of the few kids places nearby). We go early, ask to be seated in a corner or outside, and save the white tablecloth type restaurants for when we have a sitter. Pizza Bar, Red Bar, Harbor Docks, and many, many more places are fair game. The kids are as well behaved as you reasonably expect and I'm not walking them out or locking myself in my house if they spill ketchup on their ascot. If you hear them crying you won't for long, they aren't getting up and running around and they mind their parents who are cognizant that we are all in a restaurant. If you have a problem with them or how they are behaving, it is your own.